Are you looking for the best bolt machining factories in China? With China being a hub for high-quality fastener production, choosing the right manufacturer can be overwhelming. In this article, we’ll compare the top bolt machining factories in China, highlighting their strengths, products, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

High Precision CNC Machining Special Bolts

Product Details: High Precision CNC Machining Special Bolts are manufactured by Peak Fasten Technologies using CNC processes with a tolerance of ±0.05 mm. These bolts are typically made of carbon steel and stainless steel. They can withstand over 24 hours of salt spray testing, depending on customer requirements. The bolts are widely used in industries such as automotive, machine parts, and electronics. They are available in standard sizes or can be customized based on customer drawings. Surface treatments include Zn-plated, Ni-plated, Tin-plated, Passivated, Sandblast, and Anodize, among others. Heat treatments such as Tempering, Hardening, Spheroidizing, and Stress Relieving are also available. Packaging

options include wooden boxes for bulk goods and bubble packs with wooden boxes for precision packaging.

Pros:
– High precision sizes for high precision applications
– High rust-resistant performance suitable for extreme environments
– Fine surface finish without burrs or scratches
– Wide range of surface treatments and heat treatments available
– Customizable sizes and materials based on customer specifications
– High-quality and reliable performance ensured by advanced CNC machinery and expe…

Cons:
– Limited geographical availability, primarily serving European and American marke…
– May require longer lead times for custom orders
– Dependent on specific material and treatment choices which could affect cost and…

China M16 Bolt Forming Machine Suppliers, Manufacturers

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Top 10 Bolts And Nuts Manufacturers In China

Product Details: Chinese bolts and nuts manufacturers produce a wide range of fasteners including hex bolts, heavy hex bolts, studs, nuts (hex nuts, flange nuts, nylon locking nuts), screws, washers, and other specialized fasteners. These products are made from various materials such as carbon steel, alloy steel, and stainless steel. Companies like Fastenwell, Ningbo Topbolt Metalworks, and Ningbo Yi Pian Hong Fastener Co., Ltd. offer products that meet international standards like DIN, ASTM, ANSI, and IFI[1][3][5].

Pros:
– High-quality products meeting international standards
– Wide range of products to meet different industry needs
– Competitive pricing due to lower production costs in China
– Advanced technology and comprehensive quality control systems
– Personalized customer service and ability to customize products according to cli…

Cons:
– Quality variability among different manufacturers
– Potential communication barriers due to language differences
– Longer lead times and shipping durations for international clients
– Dependence on import regulations and customs clearance

China Hex Bolts,Hex Nuts,Flat Washers,Machine Screws …

Product Details: Kunshan Zhonggu Precision Hardware Co., Ltd. specializes in the production and sale of various types of industrial fasteners. Their flagship products include heavy-duty bolts, heavy-duty nuts, A194 2H, A193, B7, and B8 fasteners. The company offers a wide range of fasteners such as hex bolts, hex nuts, flat washers, machine screws, set screws, countersunk head tapping screws, masonry screw bolts, and more. These products are made according to various international standards including National standard (GB), British standard (BS), German standard (DIN), American standard (ANSI/IFI), Japanese standard (JIS), and International standard (ISO). The products are widely used in industries like solar,

mechanical processing, electronics, building engineering, automotive processing, and maintenance stations.

Pros:
– Wide range of products to cater to different industrial needs
– Compliance with multiple international standards (GB, BS, DIN, ANSI/IFI, JIS, IS…
– Quality management system certified by ISO9001:2000, ROHS, and CE
– Products made from high-quality materials such as stainless and carbon steel
– Diverse applications across various industries

Cons:
– No specific information on pricing or cost-effectiveness
– No detailed customer reviews or testimonials available on the website
– Limited information on custom or bespoke fastener solutions

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Aluminium CNC Machining Per Bolt

Product Details: PTCQ Technologies specializes in precision aluminum CNC machining, including the production of through bolts. They use advanced CNC machining centers to manufacture these components. The process involves designing the part using CAD software, converting the design into a CNC machine program, setting up the machine, machining the part, and post-processing for the desired surface finish. Materials used include various grades of aluminum, and the company ensures 100% inspection of parts before delivery using in-house inspection machines such as projectors, CMM, hardness testers, and roughness testers.

Pros:
– High precision and complex geometries achievable
– 100% inspection of parts before delivery to ensure quality
– Competitive prices and on-time delivery (99%)
– Advanced CNC machining centers for efficient production
– Various surface finishes and additional treatments available

Cons:
– Potential for higher setup time for complex parts
– Costlier for large volume production due to time per piece
– Possible waste material with subtractive processes

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Bolt Machining Factories in China

What types of bolts can Chinese bolt machining factories produce?

Chinese bolt machining factories can produce a wide variety of bolts, including hex bolts, carriage bolts, hexagon socket screws, and custom bolts according to specific client requirements. These bolts can be made from various materials such as stainless steel, carbon steel, brass, bronze, and aluminum, catering to different industries like automotive, electronics, and construction.

What is the typical production capacity of a bolt machining factory in China?

The production capacity of bolt machining factories in China can vary significantly. For instance, some factories like Shanghai Tianbao Fastener can produce 200-320 million pieces monthly, while others like Jiaxing Qimu Trading have a yearly production capacity of 25,000 tons. This high capacity ensures they can meet large-scale demands efficiently.

What quality standards do Chinese bolt machining factories adhere to?

Chinese bolt machining factories often adhere to international quality standards such as ISO 9001, ISO 14001, and other global standards like DIN, ANSI, ISO, JIS, and BS. These standards ensure that the products meet high-quality requirements and are suitable for various applications across different industries.

Can Chinese bolt machining factories provide custom and specialized bolts?

Yes, many Chinese bolt machining factories specialize in producing custom and specialized bolts. Companies like Yijin Hardware and Peak Fasten Technologies are adept at crafting non-standard fasteners according to clients’ exact requirements. They use advanced cold heading methods and CNC machining to ensure high-precision components.

What kind of material testing and quality control do these factories perform?

Chinese bolt machining factories typically perform rigorous material testing and quality control. For example, Yijin Hardware has labs to analyze material chemistry and equipment to test part strength without causing damage. They also conduct first article inspections and maintain high quality rates, such as Jiaxing Qimu Trading’s 99.8% quality rate.